Brake-setting mechanism.



GJ E, HENRY.

BRAKE SETTING MECHANISM.

APPI'ICATIGN FILED ma 27, 1014,

ljatente DEG. 29, i914.

2 SHEETS' 'SHEETL G LHBNRY. BRAKE SETTING MEGHANISM APPLICATION TILBDAPR.27. 1914.

Patented 1m29, 1914.

2 SHEETS-SHEET 2.

mi fm ann rack mQmLJ: 15 Wil nh is also,

a Qasing fasts upon the rack e be E nstanjy chang so as to opeae moreS10 mamme@ on Smf gar 15 21 'lately-L *Wh operate *Le ratche the gem andpinion shaft E0 mount a St-cctca 01 awer a Chain n5 show/'m is from mg Ymem 1 slower operation of the shaft than before. n other Words, theleverage had been greatly multiplied so that the brake can betightly setagainst the Wheels. IIhis is loen cause the gear 24 is reduced indiameter and it operates on the shaft 10 through the arm 22 and pinion23. 'Said pinion travels around slowly betweenifthe ratchet gear 18 andthe gear 24.

While the upper ratchet 'wheel 21 is being actuated for the rapidWinding of the chain, the other parts, 25, 2li, 23 and 22, areoperatingall of the time, but in an idle manner, as the rapid rotation of shaftl0 will cause corresponding rapid revoliitions of arm 22, pinion 23,gear 4 and ratchet wheel 25,

. During that time the pawl rides on the ratchet Wheel sufficiently totake up the difference in movement between the easing 2O and ratchetwheel 25. As soon as the paw] 31 is discontinued from the ratchet Wheel20, then the further operation yof the casing through the handle 30,will pioduce only a very sionT rotary movement in the shaft 10.

The invention claimed is;

l. Brake operating mechanism including a brake-chain winding shaft; a,housing in o which said shaft is partially mounted, and

gearing mounted in connection -with said shaft and within said housingfor actua-ting said shaft at different speeds.

2. Brake operating mechanism including a brake-chain Windingshaf", ahousiiig in which said shaft patiall mounted, one portion of saidhousing being stationary and the. other portion thereof being rotatable,

y gearing on said shaft'in said housing, and

means mounted in connection-with the housing Jor operating 'said shaftthrough said gearing at two diliere'nt speeds,

3. Brake operating mechanism including a brake-chain winding shaft, ahousing in which said shaft is partially mounted and said housingconsisting of a stationary pord tion and a rotatable portion, a handlesecured to said rotatable portion for turning it, gearing mounted onsaid shaft, means on the rotatable portion of the housing! for drivingsaid shaft 'through a. portion of said gearing at one speed, and meansmounted on the 'stationary part of said housing for -coperating with thegearing on said'shaft arm, a stationaryr annular rack with which' thepinionmeshes, a gear loosely mounted on the shaft for driving thepinion, 'a ratchet Wheel for driving said gear, and means on the housingfor driving said last mentioned ratchet wheeh 5. Brake operatingmechanism including affhralre chain winding shaft; a revoluble housingprovided with a handle for loperatfing it, a ratchet Wheel secured on te shaft, releasable means `for transmittin .y power from the housing tolthe ratchet Wheel,v a

vstaftionary housing in which the shaft is Y munted, a stationaryannular rack secured on said stationary housing and concentric 'with theshaft, an arm keyed to the shaft,

a' pinion on said arm meshing with-said rack, a. gear loosely mounted onthe shaft and meshing with saidpinion, a rawllet Wheel surrounding theshaft and 'secuiied tosaid pinion, and a springpavvl inc )uiitled onsaid revoluble housing in positmn ti actuate said last-mentionedratchetwheel..Y f6., Brake operating mechanism including a brake chainwwinding'shaft, a revoluble hgnsing provided with a handle for operat-yingit, a ratchet wheel secured onth'e shaft,

a spring-actuated pawl carried lby the hoiisingfor driving saidratchetwheel, apu'sh rod rmounted in connection withzth'ihandle the handle forlocking said pnsh'fjd in its adjusted position, and means actuated bythe housing floroperating the shaft-at slower speed than said ratchetwheel.

n Witness whereof, Iv Ahave vhereunto r aiiixed my signature in thepresence `of the Witnesses herein. named. A

onoaonn. HENRY, vitnesses: I

J. H. WELLS, o. M. MCLmaar@` for releasing said pawl, means carried by v

